di-Sodium tetraborate decahydrate

半岛bd体育手机客户端 说明

一般描述

Certipur^?certified secondary standard reference buffers are used to precisely calibrate and monitor pH measurement instruments and buffer solutions. They are quality controlled and qualified in our ISO/IEC 17025 and 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in compliance with DIN 19266, IUPAC, NIST, Ph. Eur and USP. Certipur^?reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.

应用

di-Sodium tetraborate decahydrate [pH(S)=9.18 0 (25 ℃)] is a certified secondary standard reference buffer used as a calibration buffer standard for pH instruments or pH electrodes.

特点和优势

• The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing the relevant data for the quality management system.

The pH value of this Certipur ^?buffer solution is measured using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary SRMs [pH(S)=9.18 0 (25 ℃)].

• It is a Certified Reference Material (CRM) offered in neat format.
• Intended for extremely precise calibration, qualification and monitoring of pH instruments and for testing other buffer solutions.

分析说明

pH-value (25?°C): 9.180 - 9.186
Identity: passes test

法律信息

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

基本信息

经验(实验)分子式	B4Na2O7· 10H2O
分子量	381.37
MDL编号	MFCD00149193
EC索引号	215-540-4

半岛bd体育手机客户端 性质

质量水平	300
等级	certified reference material
agency	complies with DIN 19266
蒸汽压	0.213 hPa ( 20 ℃)
半岛bd体育手机客户端 线	Certipur?
效能	2660 mg/kg LD50, oral (Rat) >2000 mg/kg LD50, skin (Rabbit)
pH值(酸碱度)	9.2 (20 ℃, 47 g/L in H2O)
mp	75 ℃ (Elimination of water of crystallisation)
溶解性	49.74 g/L
密度	1.72 g/cm3at 20 ℃
堆积密度	750 kg/m3
application(s)	environmental food and beverages general analytical industrial qc pharmaceutical
格式	neat
储存温度	15-25℃
InChI	1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
InChI key	OJPFLODMGUZMKD-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Danger
危险声明	H319 - H360FD
预防措施声明	P201 - P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313
危险分类	Eye Irrit. 2 - Repr. 1B
储存分类代码	6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK	WGK 1
闪点(F)	Not applicable
闪点(C)	Not applicable